IEICE Electronics Express
Online ISSN : 1349-2543
Compact LTCC source-load coupled SIW filter using mixed coupling
Ziqiang XuYu ShiWanting ZhouJiaxuan Liao
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2012 Volume 9 Issue 16 Pages 1349-1354

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Abstract

A novel substrate integrated waveguide (SIW) filter with source-load coupling based on low temperature co-fired ceramic (LTCC) technology is proposed. By introducing mixed coupling into input/output SIW in middle layer, the filter not only has good selectivity owing to the controllable transmission zeros, but also has a compact size by the virtue of LTCC structure. Based on the flexible coupling manner in multilayer structure, a demonstration second-order bandpass filter with three transmission zeros has been designed and fabricated. Good agreement between measured and simulated results is observed.

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© 2012 by The Institute of Electronics, Information and Communication Engineers
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